Radio
Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both. Audio broadcasting also can be done via cable radio, local wire television networks, satellite radio, and internet radio via streaming media on the Internet.


Television
Television (TV) is a telecommunication medium for transmitting and receiving moving images with accompanying sound. Until the 2000s broadcast TV programs were generally transmitted as an analog television signal, but in 2008 the USA went almost exclusively digital.

Film
'Film' encompasses motion pictures as individual projects, as well as the field in general. Films are produced by recording people and objects with cameras, or by creating them using animation techniques and/or special effects.

Video games
A video game is a computer-controlled game where a video display such as a monitor or television is the primary feedback device.

Audio recording and reproduction
Sound recording and reproduction is the electrical or mechanical re-creation and/or amplification of sound, often as music. This involves the use of audio equipment such as microphones, recording devices and loudspeakers.